SignUserId Method
Signs the specified user Id of the current key.
Syntax
keymgrcontrol.SignUserId UserId, IssuerUserIdRemarks
This method signs the UserId with the IssuerUserId.
To sign all user Ids in the current key set the UserId parameter to "*".
The key's passphrase is required for this operation and may be specified via KeyPassphrase or through the KeyPassphrase event.